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Inhibition reelection and separation method for bulk concentrate floatation of plumbum-zincium, plumbum-zincium-copper or plumbum-copper

A technology for mixing concentrates and separation methods, applied in solid separation, wet separation, chemical instruments and methods, etc., can solve the problems of high cost of non-main metal recycling, difficult metallurgical process, production waste, etc., to promote effective The effect of enrichment, improving the quality of metallurgical products and improving economic benefits

Inactive Publication Date: 2011-01-26
兰坪县矿产三废回收厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main metals obtained by metallurgy contain more intermetallics, resulting in a high cost of recycling non-main metals, and a great waste of waste when discarded.
If the mutual content of metal elements in the concentrate exceeds the standard to a certain extent, it will directly make it difficult to carry out the subsequent metallurgical process, and it will be necessary to do ore blending or other treatments, causing unnecessary waste to production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: The lead-copper mixed concentrate obtained by flotation contains 45% by weight of lead and 4.5% by weight of copper. Put the above-mentioned concentrate into the mixing drum, add the inhibitor sodium dichromate, adjust the pH value of the pulp to 7.4-8, stir for 10-30 minutes, and then send it to the glass fiber reinforced plastic fine slime shaker for separation, the concentrate of the shaker Lead concentrate, sub-concentrate and tailings are brought to lead-copper sub-concentrate and tailings. The obtained lead concentrate contains no less than 60.5% lead by weight and less than 1% copper by weight. Repeat four more times to send the obtained sub-concentrate, tailings and depressant-containing separated water to the shaker for re-election, and each time the obtained lead concentrate contains no less than 60.5% lead by weight. The last obtained copper concentrate contains 10.2% copper by weight and 1.5% lead by weight.

[0014] As a comparison, for the lea...

Embodiment 2

[0015] Example 2: The lead-zinc mixed concentrate obtained by flotation contains 45.72% by weight of lead and 8.62% by weight of zinc. Put the above concentrated ore into the mixing drum, add the inhibitor sodium sulfide, adjust the pH value of the pulp to 9-10, stir for 8-25 minutes, carry out high-frequency vibration screening on the pulp, and then separate the obtained fine, medium and coarse The fine ore concentrate is sent to the glass fiber reinforced plastic shaker for re-election. The obtained lead concentrate contains 65% lead by weight. Repeat 5 times to send the above-mentioned secondary concentrate, tailings and depressant-containing separated water into the shaking table for re-election. The lead concentrate weight ratio of each gained lead concentrate is not less than 65%, and the zinc weight ratio Less than 1.5%. The last obtained zinc concentrate contains 22.7% by weight of zinc and less than 2% by weight of lead.

[0016] As a comparison, for the lead-zinc ...

Embodiment 3

[0017] Example 3: The lead-zinc-copper mixed concentrate obtained by flotation contains 55.64% by weight of lead, 6.1% by weight of zinc and 6.85% by weight of copper. Put the above concentrate into the mixing drum, add water to form a slurry, add 200 grams of inhibitor carboxymethyl cellulose per ton of slurry, after stirring, send it to the glass fiber reinforced plastic fine slime shaker for separation, the concentrate on the shaker will get lead Concentrate, sub-concentrate zone and tailings zone are lead-zinc-copper-containing sub-concentrates and tailings. The obtained lead concentrate contains 66% lead by weight, and the weight ratios of zinc and copper are both lower than 1%. Sending the secondary concentrate, tailings and depressant-containing separated water obtained above into the shaking table for re-separation repeatedly for 6 times, and the weight ratio of lead in the lead concentrate obtained each time is not less than 66%. The zinc-copper mixed concentrate obt...

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PUM

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Abstract

An inhibition gravity treatment separation method for lead-zinc, lead-zinc-copper or lead-copper floatation collective concentrates pertains to the mineral processing technical field. In gravity treatment separation of the collective concentrates, lead sulphide inhibitor is added. The method includes the following procedures: after lead sulphide inhibitor is added, the collective concentrate is seresurgence till the water co$tent reaches 16 percent to 22 percent, the fermentation is carried out for 3 days under the connitions of the temperature of 25`DEG C to 40 DEG C and the humidity of 70 pent to a table concentrator again for gravity treatment separation; after the gravity treatment separation in the table concentrator, the concentrate belt includes lead concentrate and sub-concentratebelt and the tailing zone includes sub-concentrate and gangue containing lead-zinc, lead-zinc-copper or lead-copper; the obtained sub-concentrate and the gangue undergo the gravity treatment separation in the table concentrator again or for a plurality of times, thus finally obtaining lead concentrate, zinc concentrate, zinc-copper concentrate or copper concentrate. Due to the existence of lead sulphide inhibitor, the floatability of the lead sulphide is completely inhibited so as to highlight the high specific gravity feature of the lead sulphide; therefore, the lead sulphide is easily separated from a plurality of metallic collective concentrates by the gravity treatment separation in the table concentrator. The content of the metal elements in the obtained concentrates is mutually low and the major metal concentrate and the attaching metal concentrate can both satisfy the metallurgical standards and requirements, thus having extremely remarkable economic benefits.

Description

technical field [0001] The invention belongs to the technical field of beneficiation of non-ferrous metal ores, and in particular relates to a shaking table gravity beneficiation separation method with an inhibitor added. Background technique [0002] Non-ferrous metallurgy, whether it is pyrometallurgy or wet method, must use concentrate. The beneficiation of lead-zinc, lead-zinc-copper or lead-copper mixed ore is very difficult. Because the control of the flotation separation suppression point is very difficult, the metal elements of the output concentrate often contain each other high. Because galena has natural buoyancy, the metal elements in the concentrate obtained from gravity separation are also high in each other. Even if the lead-zinc, lead-zinc-copper or lead-copper mixed ore undergoes combined flotation-gravity separation beneficiation, the mutual content of metal elements in the output concentrate is still high. This makes the subsequent metallurgical process...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B1/04B03B5/04
Inventor 李美平
Owner 兰坪县矿产三废回收厂
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